It is 4 GB for EasyDIS V44 giving you diagnostics, coding and programming. EDIABAS & INPA combined are 0.25 GB. VMware Player another 0.25 GB. So call it 5 GB total.

I think the 40 GB was a result of original DIS versions being installed on computers with 40 GB drives. So the hackers set up virtual machines with 40 GB pre-allocated to avoid any size problems. But I've found that EasyDIS / Player is quite happy with dynamic sizing which works out to 4 GB for EasyDIS.

I've said in earlier posts that Progman is not worth the time & effort for E39s, at least in my opinion. And it does take a lot more space.
V57 maybe; it is a simple upgrade to do once V44 is running, but I haven't seen the benefit, at least so far. And you lose coding and programming functionality unless you keep a separate copy of V44.

Your choice of course, but it's 5 GB not 100 +. And that gives you the same capability the dealers had until the mid to late 2000's.

Hope this clarifies the matter of drive space you need.

Regards
RDL

I will echo what RDL posted above. Further, Progman does not actually use the full 80gb once installed. However, the installation package calls for ~80gb of free space and will not proceed until the space is available. As mentioned, this may not be worth the effort unless you have a need to code new modules, which is why we are concentrating on INPA/DIS for the time being. I can tell you right now that INPA will likely be your tool of choice for most things.

Also keep in mind that RDL's 5gb estimate doesn't include the hdd space use by the OS, paging file, etc.. so if you're putting a laptop together, always opt for the larger drive if you have the means.